Sandbox

SELECT 
  b.variant_name, 
  a.*, 
  IF(
    shared_option_variants.variant_id IS NOT NULL, 
    shared_option_variants.modifier, 
    a.modifier
  ) as modifier, 
  IF(
    shared_option_variants.variant_id IS NOT NULL, 
    shared_option_variants.modifier_type, 
    a.modifier_type
  ) as modifier_type 
FROM 
  cscart_product_option_variants AS a 
  LEFT JOIN cscart_product_option_variants_descriptions AS b ON b.variant_id = a.variant_id 
  AND b.lang_code = 'en' 
  LEFT JOIN cscart_ult_product_option_variants shared_option_variants ON shared_option_variants.variant_id = a.variant_id 
  AND shared_option_variants.company_id = 1 
WHERE 
  1 
  AND a.option_id IN (
    120642, 120629, 62401, 62405, 69634, 
    119980, 120470, 120484, 120488, 120537
  ) 
  AND a.status = 'A' 
ORDER BY 
  a.position, 
  a.variant_id

Query time 0.00094

Explain
id	select_type	table	type	possible_keys	key	key_len	ref	rows	Extra
1	SIMPLE	a	range	status,option_id,option_id_2	option_id	6		20	Using index condition; Using filesort
1	SIMPLE	b	eq_ref	PRIMARY	PRIMARY	9	toolboxdigitalshop_dev.a.variant_id,const	1	Using where
1	SIMPLE	shared_option_variants	eq_ref	PRIMARY,company_id	PRIMARY	7	toolboxdigitalshop_dev.a.variant_id,const	1

Result

variant_name	variant_id	option_id	position	modifier	modifier_type	weight_modifier_type	point_modifier_type	status
MP3	124870	62401	1	0.000	A	A	A	A
MP3	124878	62405	1	0.000	A	A	A	A
MP3	139782	69634	1	0.000	A	A	A	A
MP3	240496	119980	1	0.000	A	A	A	A
MP3	241476	120470	1	0.000	A	A	A	A
MP3	241504	120484	1	0.000	A	A	A	A
MP3	241512	120488	1	0.000	A	A	A	A
MP3	241610	120537	1	0.000	A	A	A	A
MP3	241794	120629	1	0.000	A	A	A	A
MP3	241820	120642	1	0.000	A	A	A	A
WAV	124871	62401	2	1.500	A	A	A	A
WAV	124879	62405	2	1.500	A	A	A	A
WAV	139783	69634	2	2.000	A	A	A	A
WAV	240497	119980	2	1.500	A	A	A	A
WAV	241477	120470	2	1.500	A	A	A	A
WAV	241505	120484	2	1.500	A	A	A	A
WAV	241513	120488	2	1.500	A	A	A	A
WAV	241611	120537	2	1.500	A	A	A	A
WAV	241795	120629	2	1.500	A	A	A	A
WAV	241821	120642	2	1.500	A	A	A	A